She's not wrong though, This incel movement started from a website called Puahate which eventually evolved into Sluthate after one of it's users was behind the isla Vista shootings.
The site has another offshoot called lookism. Today we have more incels then ever before.
I don't remember it that way. There were forum websites like this one that have existed since 2005 (which I was banned at least twice from, and actually met a black girl and went out with her briefly, from there too). I don't recall Puahate as being an "incel" board, or was that in my radar at that time, or was even discussed much on whatever incel forum I was in.
What I remember is some guy put up some website that contained allot of pages with some common sense advice with meeting women, and it had a link to a forum. There was another incel website made up after that one at the time. There was also a wikipedia page of it. So, unless there is a Mandela Effect or something going on here, your version is definitely not what I remember. There were some colourful characters on it, like a guy from England who complained he had too much social anxiety to visit a prostitute.
In terms of there being more incels today than before, I don't think a movie like 40 Year Old Virgin would mean anything today and would probably be a flop compared to the mid 00s when the zeitgeist at the time support those type of movies.